GPS CONTROL PT 55 — NGS DE8504 — Martinez, US

USNGStrigunknown#1956
Latitude
37.987436°
Longitude
-122.086594°
Ellipsoidal h
18.27 m
Ortho h
50.32 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey network, which establishes the fundamental geodetic control framework for the United States. Trig stations of this type serve as primary reference points for surveying, mapping, and positioning activities across regions. Located near Martinez, California, at coordinates 37.98744° N, 122.08659° W with an ellipsoidal elevation of 18.3 meters, this benchmark provides essential horizontal and vertical control for local and regional surveys. Such points enable surveyors and engineers to reference their work to the national geodetic datum, ensuring consistency and accuracy in land surveys, infrastructure projects, and geographic information systems. Regular verification and documentation of these monuments help maintain the integrity of the geodetic network and support continued reliance on these established control points for professional surveying practice.

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GPS CONTROL PT 55 — NGS DE8504 — Martinez, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #1956 on SurveyingPedia and sits at an approximate elevation of 50.3 metres. Its coordinates in WGS84 are 37.987436°, -122.086594°, corresponding to 37° 59′ 14.77″ N, 122° 5′ 11.74″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like GPS CONTROL PT 55 — NGS DE8504 — Martinez, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)37.987436, -122.086594
WGS84 (DMS)37° 59′ 14.77″ N, 122° 5′ 11.74″ W
UTM zone (approx.)Zone 10N (approx.)
Elevation50.32 m
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · GNSS reference point
GLACIER GPS — NGS AE7868 — Martinez, US
0.1 km away · US
US NGS · triangulation station
B 1197 — NGS HT0136 — Contra Costa County, US
1.3 km away · US
US NGS · triangulation station
PACHECO 2 RM 5 — NGS HT0135 — Contra Costa County, US
1.3 km away · US
US NGS · triangulation station
PACHECO 2 RM 4 — NGS HT0134 — Contra Costa County, US
1.3 km away · US
US NGS · triangulation station
PACHECO 2 — NGS HT0133 — Contra Costa County, US
1.3 km away · US
US NGS · triangulation station
E 179 — NGS HT0129 — Contra Costa County, US
1.4 km away · US

Frequently asked questions

What is GPS CONTROL PT 55 — NGS DE8504 — Martinez, US?

GPS CONTROL PT 55 — NGS DE8504 — Martinez, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #1956 and sits at an elevation of 50.3 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of GPS CONTROL PT 55 — NGS DE8504 — Martinez, US?

The position of GPS CONTROL PT 55 — NGS DE8504 — Martinez, US in WGS84 is 37.987436°, -122.086594° (decimal), or 37° 59′ 14.77″ N, 122° 5′ 11.74″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 10N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.